I don’t expect Biden to lose SC by more than 7-9 points, so it’s not at all impossible for Harrison to get there with some combination of Trump voters skipping the Senate race, Harrison winning over a few Trump voters, and the Constitution Party candidate siphoning off 3-4% of Graham support. Either way, this is one of those races where renominating the incumbent made the seat more vulnerable than it should be.
Lean R for now, but it has a lot of upset/TX-SEN 2018 potential.
This race is pretty much Safe R